For context, BYD is only just entering the Canadian market[1], it looks like they're looking to really make their mark. Also the article mentions "the low six-per-cent tariff is capped at just 49,000, split between not only Chinese brands but Tesla, Volvo, and Polestar" and suggests that BYD may plan to build some of their cars in Canada.

I don't understand NAFTA very well but might that open the door to BYD cars being able to be sold in the US as well? if they aren't blanket banned that is.

1: https://eletric-vehicles.com/byd/byd-canada-targets-twenty-d...